Monthly Data Tables - Maximum Rain Rate / mm/h
Start year
Monthly Range Maximum Rain Rate
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Lowest
14
3.3
0.1
0
0
13
12
10
24
0.6
7
7
28
Highest
118
161
53
54
99
118
126
118
123
107
114
125
70
Mean
41
37
24
25
45
65
56
70
60
57
41
35
46
Maximum Rain Rate: range of daily values each month (max − min) for all months since 2009 in London, NW3. Data for Maximum Rain Rate begins in 2009.
Highest instantaneous rain rate (1-min avg) recorded during the day (midnight to midnight, local time).